=steoporosis.[Spine (Phila Pa 1976). =003) • Effect of walking exercise on bone metabolism in =ostmenopausal women with osteopenia/osteoporosis.[J Bone Miner Metab. 2004] • Exercise and lumbar spine bone mineral density in =ostmenopausal women: a meta-analysis of individual patient =ata.[J Gerontol A Biol Sci